Hammer-type channeling machine



Dec. 16, 1924. 1,519,134

C. C. HANSEN HAMMER TYPE CHANNELING MACHINE Filed Jul'y 2e, 1922 5 sheets-sheet 1' JlllllllHIIII-lll Dec, 16, 1924. 1,519,134

- c. c. HANSEN v HAMMER TYPE CHANNELING MACHINE Filed July 26, 1922 5 Sheets-Sheet 2 DE, 16, 1924. v- 1,5l9,134

' C. C. HANSEN HAMMER TYPE CHANNELING MACHINE Filed July 26, 1922 5 Sheets-Sheet 3 J3 4 A f O N R/ O ;w t l;

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Y c. c. HANSEN HAIIER TYPE CHANNELING MACHINE Filed July 26, 1922 5 Sheets-Sheet 5 zasimem??? l Patented Dec. 16, 1924.

UNITED STATES PAENT @'FFICE.

CHARLES C. HANSEN, OF EASTON, PENNSYLVAEHA, ASSIGNOR- TO INGE'RS@LL-RAND COMPANY, OF JERSEY CITY, NETN JERSEY, COBERATION 0F NEW JERSEY.

HAMMER-TYPE CI-IANNELENG- MACHNE Application filed July 26, 1922.

To all whomy it may concern.'

Be it known that I, CHARLES C. HANSEN, a citizen of the United States, and aresident of Easton, in the county of Northampton and State of Pennsylvania, have invented a certain Hammer-Type Channeling Machine, of which the following is a specification, accompanied by drawings.

This invention relates to stone working machines, having a fluid actuated cutting engine, but relates more particularly to channeling machines, including the radial. type for radial channeling in stone for cutting o-ut blocks in dimensions, and the track channeler, designed primarlly for the heaviest work and the deepest cuts, in open quarries of limestone, sandstone, slate and other materials, from which the output is also in dimension stone. In this latter service, one of the most important fields for the channeler has been found in making long, deep, longitudinal cuts, which are preliminary to further breaking by the plug and feather method.

Another valuable field of application for the channeler when ruiming on a tra-ck, has been found in certain classes of heavy contracting work, such as digging canals and reservoirs. The advantages vof the trackchanneling machine inv such work reside in the fact that, first, the limits of excavation can be distinctly marked by channeling along the limiting line and shooting out within this mark; secondly, the quantity of rock to be bro-ken and removed is confined strictly to the limits of the cut, and this is an item often of great consequence in practical work; and thirdly, the Walls of the excavation are left smooth andi solid, requiring the minimum of attention and maintenance.

A peculiarity of this class of open-cut work with the channeling machine, is that the tiring of the base at any level frequently shatters the material below that level, which material remains to be cut on the next level, and imposes an extremely severe service upon the channeler, so severe in fact, that these machines are required to be of great strength and high power, and necessitates ready control.

The drilling mechanism or cutting engine of either the radial or the track channeler, commonly used today, has a reciprocating piston with the cutting tool or channeler steel fastened directly to the piston by means Serial ITG. 577,685;

of a suitable chuck so that the steel reciprocates bodily with the piston, as in the usual form of so called piston drills. The cutting tool usually comprises a gang of steels with a given number of steels in the gang, depending upon the class of work to be done.v With the present type of heavy piston drills and the heavy channeler steel, a comparatively wide slot is cut in the rock, which is wasteful and consumes power and there isfl also a tendency of the channeler steel to run or move side-wise in the slot being cut, which makes a crooked cut, and is detrimental to the machine and injurious to the marble or other valuable rock being cut. Such heavy machines of the reciprocating piston and piston rod type, are also apt to bruise the rock at each side of the'channel, because the re-` ciprocating steel, in lifting and lowering and striking blows of impact upon the rock itself has a crushing effect upon the rock instead of a. t-rue cutting action.

The objects of the present invention are to improve upon present types of channeling machines, and enable a slot to be cut with'a channeler steel by action of the steel on the rock, which is approximately a true cutting action, thus avoiding bruising of the rock and other inherent disadvantages of the present machines. My improvement is based upon the hammer drill principle, as applied to the cutting engine of a channeler and in carrying out my invention, I construct the channeling machine with a fluid actuated cylinder, having a reciprocating hammer piston therein for imparting blows of impact to the cutting tool or channeler steel. The cutting engine is thus built upon the hammer drill principle, but applied to cutting channels in rock instead of for drilling holes, and by this means, moreand harder blows per minute can be struck and there is not the same tendency, and infact practically no tendency of the steel to run or move side-wise in the slot, so that a straight slot or channel is cut, either by a radial channeler or by a track channeler. y'

My hammer type machine permits the use' of a single fiat sided channeler steel comparatively narrow in width,` analogous' to a drill steel, instead of the wide gang of steels now used, and by cutting a narrower slot, less rock is required to be cut, thus saving time and saving material, andproducingv more economical cutting in other ways, by

reducing the cost or opera-tions. By constructing the 'flat channeler steel with a circular cutting edge, the steel will continually tend to vclimb or mountthe shoulder, always in the Abottom of the channel being cut, as the machine travels along the track or is swung about a pivot it mount-ed on a post or bar, which is an important advantage in conjunction with the hammer type of cutting machine.

Further objects and advantages of my invention will hereinafter appear, and to all of these ends the invention is shown in the accompanying drawings, in which- Figure l is a top plan view partly in horizontal section of a cutting engine of the hammer type for channeling. mounted on a post or column,

Figure. 2 is a side elevation of the machine shown in Figure 1.

Figure 3 is an enlarged detail plan view of the front end oi the shell of the machine,

Figure 4 is an end view of Figure 3,

Figure 5 is a side elevation of the front end of the shell showing a modification of the centralizer or channeler steel guide.,

Figure 6 is a transverse sectional view on the line 6-6 of Figure 5 looking in the direction of the arrows, Y

Figure 7 is an end elevation oit' a track channeler,

Figure 8 is a detail end elevation of a portion of the machine showing a centralizer or channeler steel guide like that illustrated in Figure ,1. y

Figure 9 is a side elevation of the track channeler, and v Figure 10 is an end elevation of the. machine showing the cutting engine at an angle to the vertical.

Referring to the drawings, and at iirst more particularly to the radial type channeler, shown in Figures 1 to 6 inclusive, a shell A having a cone B is connected to a sleeve C, as by means of the bolt D and cap IG, which sleeve is mounted for pivotal movement within a clamping member F adapted to be secured to a column or other support G, as by means of the clamp I-I.

The shell A may be rotated about `its pivotal axis by means of a segment J secured to the sleeve F by means of the cap E, and a worm K operated by the crank L is provided for manipulating the segment. Any other suitable and convenient means may be provided for pivotally mounting the shell on a column, bar or other support.

The cutting engine is ofihe hammer type, and comprises a cylinder O slidable longitudinally in vthe shell A and provided with a fluid actuated reciprocating hammer piston P adapted to impart blows of impact to the shank Q of a channeler steel R extending into the chuck S in the front head T into position to be struck by the hammer piston P. rlhe back head Il of the machine, the cylinder O and front head T a-re secured together by mea-ns o't the side bolts V and fluid is supplied to the cylinder at the inlet W and exhausted at the exhaust port X. Only so much of the working parts of a cutting engine of thel hammer type are shown, as will serve to illustrate the invention, since the distribution and-control of motive liuid to the cylinder for actuating the piston P may be effected in any suitable or usual manner, and forms no part-of the presentinvention.

The cutting engine is ied to its work by means of a suitable feeding device, which may be a feed screw, to the stem Y of which is connected the crank handle Z for rotating the feeding device.

The shell A is provided at its forward end with a centralizer or guideV for the channeler steel and in the form shown in Figures 3 to 6, the centralizer comprises a slide a having guides Z9 adapted to slide in the grooves c formed in the shell. The shell is provided with the apertures Z and the centralizer is provided with the transverse grooves or krecesses e adapted to register with the apertures d so that the centralizer may be adjusted in diderent longitudinal positions, and positively locked in the desired posi'- tion by suitable bolts f.

The slide a, is formed with the jaws g between which a grooved roller may be mounted on the bolt L. In this instance the roller comprises the conical heads or sections j.

and the central sleeve portion k, which parts are adapted to be assembled on the bolt L and between the jaws g. Clamping members in the form of dogs -0 are pivotally mounted on the guide roller bolt 71, and when tightened in position against the jaws g, retain the channeler steel upon the guide roller as indicated in the drawings, more particularly in Figures 3 and l, in which case the channeler steel R is a flat steel. ,In the modification of the centralizer shown in Figures 5 and 6 a yoke piece p is adapted toV e held by the clamping members 0r kdogs 0 forming a guide for a round channeler steel g, in case it is desired to use a steel having a round cross section.

In the operation of the machine as illustrated in Figures l and 2, let it be assumed that the channeler steel R has been inserted in the cutting engine with the shank Q in position to receive the blows of impact of the hammer piston P. In this instance, the

ychanneler steel is provided with a circular upon or climb the shoulder u formed in the bottom o of the channel s as the channeling proceeds.

In the form of invention shown in Figures 7 to 10 inclusive, a cutting engine of the hammer type substantially like that illustrated in Figures 1 and 2, is mounted on the frame of a truck or carriage 2 adapted to run along a track 3 and permit a continuous channel to be cut as desired.

The track channeler shown is of the so called swing back type, and the cutting engine is suitably mounted for vertical adjustment on the front frame 4.- pivoted to swing backwardly about the pivot 5 from a vertical position indicated in Figure 7 to different angles, one angular position being indicated in Figure 10. Back screws 6, only one of which is shown, engaging pivoted back screw sleeves 7, hold the front frame in the desired position.

The cutting engine shell A is suitably pivoted to a saddle 8 by means of the bolt 9, and the saddle may be adjusted along the top of the front frame and secured in desired position by the saddle bolt 10. The shell A in this instance has a forward eX- tension 11 provided with iianges 12 with which adjustable slotted clamps 13 cooperate held to the frame by adjusting bolts 14 so that b loosening the clamps the angle of the she l in the frame may be adjusted to a limited degree, as required.

The cylinder O may be fed longitudinally in the shell A by manipulating the crank 15 conveniently mounted on the radially adjustable arm 16 and suitably geared or otherwise operatively connected to rotate the feed screw 17. The shell A is provided with a forward extension 18 on which a centralizer in the form of a roller guide 19 is adjustably mounted having the guide rollers 20 and 21 for the channeler steel. In the modification shown in Figure 8, a centralizer like that shown in Figures 3 and 4 is mounted on the shell.

I claim:

1. In a iiuid actuated percussive machine, having a cylinder and reciprocating piston, the combination of a shell in which the cylinder is mounted for longitudinal movement, and a centralizer for guiding the shank of the drill steel slidably mounted on the forward end of the shell, said eentralizer having a transversely located grooved guiding rotller mounted thereon, and clamps pivoted about the aXis of the roller cooperating with the roller to guide the steel.

2. In a fluid actuated percussive machine, having a cylinder and reciprocating hammer piston, the combination of a shell in which the cylinder is mounted for longitudinal movement, and a centralizer for guiding the shank of the drill steel slidably mounted on the forward end of the shell, said centralizer having a transversely located grooved guiding roller mounted thereon, clamps pivoted to said centralizer, and a yoke adapted to be secured in position by said clamps.

In testimony whereof I have signed this specification.

CHARLES C. HANSEN. 

